#countdistinct 搜尋結果

Lee Rhodes (@verizonmedia) discusses common queries in the #bigdata domain, such as #CountDistinct, that are non-additive, in his talk "A Production Quality Sketching Library For The Analysis Of Big Data"

ItaiYaffe's tweet image. Lee Rhodes (@verizonmedia) discusses common queries in the #bigdata domain, such as #CountDistinct, that are non-additive, in his talk "A Production Quality Sketching Library For The Analysis Of Big Data"

The COUNT DISTINCT function is a more specialized version of the COUNT function. It enables me to count the number of unique values within a column, eliminating duplicate entries. #COUNTDISTINCT #SQLTricks


(3/4) Here's a short video by @yakiro, describing how #ThetaSketches (a part of #DataSketches) can be used to perform very fast #CountDistinct via approximation youtube.com/watch?v=CFVkah…


To all #SQL jockey's with slow #CountDistinct problems, here's a great hack that worked for me! periscope.io/blog/count-dis… #DataTricks


The COUNT DISTINCT function is a more specialized version of the COUNT function. It enables me to count the number of unique values within a column, eliminating duplicate entries. #COUNTDISTINCT #SQLTricks


(3/4) Here's a short video by @yakiro, describing how #ThetaSketches (a part of #DataSketches) can be used to perform very fast #CountDistinct via approximation youtube.com/watch?v=CFVkah…


Lee Rhodes (@verizonmedia) discusses common queries in the #bigdata domain, such as #CountDistinct, that are non-additive, in his talk "A Production Quality Sketching Library For The Analysis Of Big Data"

ItaiYaffe's tweet image. Lee Rhodes (@verizonmedia) discusses common queries in the #bigdata domain, such as #CountDistinct, that are non-additive, in his talk "A Production Quality Sketching Library For The Analysis Of Big Data"

To all #SQL jockey's with slow #CountDistinct problems, here's a great hack that worked for me! periscope.io/blog/count-dis… #DataTricks


Lee Rhodes (@verizonmedia) discusses common queries in the #bigdata domain, such as #CountDistinct, that are non-additive, in his talk "A Production Quality Sketching Library For The Analysis Of Big Data"

ItaiYaffe's tweet image. Lee Rhodes (@verizonmedia) discusses common queries in the #bigdata domain, such as #CountDistinct, that are non-additive, in his talk "A Production Quality Sketching Library For The Analysis Of Big Data"

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